A cobpobation of



A. PENTECUST.

CALCULATING MACHINE.

APPLICATION msn IM/415.1918.

A. PENTECOST.

CALCULATING MACHINE.

APPucATloN man MAY 15. 191s.

Patented June 8, 1920.

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INVENTOR WITNESSES ATTORNEYJ UNITED STATES PATENT OFFICE.

ARTHUR PNTECOST, OFEAST ORANGE, NW JERSEY, ASSIGNOR T0 WALES ADDINGnmomrm` COMPANY, oF WILxEs-BARRE,

PENNSYLVANIA.

.PENNSYLVANIAA A CORPORATION 0F CALCULATING-MACHINE.

Patented June 8i, 1920.

` yAppnaamn mea may 15, 191s. serial No. 234,650.

T 0 all whom z't may concern.'

Be it'known that I, ARTHUR PENTECST, a subject of the King of England,residing at East Orange, Essex county, New Jersey, have invented new anduseful Improvements in Calculating-Machines, of which the following is aspecification.

More particularly, ythis invention relates to indexing mechanisms forcalculating machines.

Generally, in the key-set, shaft-operated type of machine to which thisinvention 1s directed, a plurality of 'denominational trains ofmechanism are provided, each including a row or series of stops, a rackor positioning bar,l the extent of travel of which is controlled by anyofthe stops in the correlated row, a typecarrier provided with typescorresponding to the individual stops of the row, which typesarepositioned at the printing line in accordance with the particular stopthen effective, and a numeral wheel to coaet with the rack.v

Keys control 'the projection of the stops to effective position, andinthe form of machine herein set forth, .tli'ereis a denominational rowof keys for each rowof stops,'al though the use of the invention is" notrestricted to this keyboard arrangement.

Depression of keys corresponding to the item desired to be registeredand printed, sets `the proper stops of the corresponding denominationalrows, in the paths of the correlated racksor'positioning bars, anddenominational latches common to the stops in the respective rows, holdthe projected stopsl in set position.

After the registration and .printingof the item has taken place, auniversal latch-releasing mechanism uis ractuated to trip all thelatches whereby tov release thel Set stops `,to return to normal idle Kposition, notwithstanding the fact that some of the same stops may berequired in the setting up of I no' particular hardship,`las only anoccasional digit may be repeated lin the same denomination in two ormore successive operations.

In man l eases,\=however, it is' desired to set up an(l print adate,pfor instance, coincidently with-each amount, for which purpose theprinting section of the machine is split in the well known manner at'thede-` sired point, and the left hand typecarrier is equipped with typeslto print abbreviations of the months.y

Under this arrangement the operator may set up a date and' an amount onthe keyboard, which date and amount Will be printed simultaneously withno intervening ciphers, due to the split in the printing section.

`In some classes of work, the operator desires to print the same daterepeatedly, with a series of different items, particularly in ledgerposting, wherein a leaf is inserted in the machine, a single date andamount printed thereon,'and the leaf removed to permit the insertion 'ofanother leaf, on which the same date with probably a different amount isto be printed.

In such event, is unnecessary to restore the stops controlling the dateprinting at every' operation of' the main drive shaft, and considerabletime is thereby saved.

This isonly. one of a number of applica` tions of the present invention,an object of which is to provide lnovel means to enable the automaticreleaseof the locking means which retains the stops set in certaindenominations of the field ofstops, without affecting, the locking meansfor the stops set in other denominations of the field.

Another object is to enable the operator to control at will therestoration of the stops in two or more sections of the field of stops,so that'at his option` all the projected stops will be returned at everyoperation of the main drive shaft, or the stops in'one section of thefield maintained ineffective position while the stops in another sectionare freed to return to idle position.

In this manner, the-operator may effect a split in the field ofdenominational rows of stops at a point corresponding to the split inthe printingseetion. v v

Thus, assuming Athat a machine adapted for nine denominations isequipped fordate printing, the split in the printing section would beformed between the sixth and seventh typecarriers counting from ytheright, and the split'in the indexing mechanism would be located betweenthe sixth and'seventh denominational rows of stops.

',Obviously, thev invention is applicable to In effecting the objects ofthis invention, I provide two separate latch-releasing devices tocontrol the latches corresponding with the typeearriers .on the oppositesides of the split, respectively, and arrange a single actuatoradaptedvto directly drive both latch-releasing devices, so that one is notoperated through the other. l

In addition,V I provide means operable at will, to disable one of thelatchfreleasing devices, whereby the latches controlled thereby mayremain effective throughout repeated operations of the main drive shaft.

To these and other ends, vmy invention comprises certain novel featuresand combinations of parts, all of which will be more fully set forthhereinafter and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view (partly broken'away of the keyboard of the well known ales calculating .machines,equipped with one embodiment of the invention;

' Fig. 2 is a ifragmentary plan view thereof, partly broken away;

Fig. 3 is a fragmentary rear end view, partly broken away;

Fig. 4 is a detail side view of a denominational train of mechanism tothe left of the split in the printer section, equipped to print monthdesignations,

Fig. 5 is a disassembled perspective view of the main parts of this formof my invention, and

Fig. 6 is a detail View of one of the nu.-

`meral type carriers.

I have chosen to illustrate my invention as applied to the indexingmechanism of a )Vales calculating machine, disclosed in U. S. patents toVaIeS, 745,539, Dec. 1, 1903; 768,097, Aug. 23, 1904.-; and 797,032,Aug. 15, `1905; and to McFarland, 874,107, Dec. 17, 1907, to whichreference is made for a more complete explanation. j

-A calculating and listing machine of this class comprises an indexingmechanism, an accumulating section, and 'a printing sec'- tion.

rIhe indexing section of the )Vales machine is preferably a unitconstruction, removably placed in the machine,` and comprises a keyboardcomposed of side frames 110 (Figs. 1 and 4) connected by cross rods 101and angular cross bars 118, the latter` arrangedin stepped relation.l'Standards ,110" extending upwardly from the side lma frames, support akey Vplate 112 at a" convenient incline. Keys'117'arran'ged inrows ordenominations (Figs. 1, 2 and 3) from front to rear of the keyboard,pass through apertures pierced in the keyboard plate 112 and throughregistering guide slots formed in the angle bars 118. Springs 180encircle the stems 117, the lower` ends of which springs restV on theangular cross bars 118 j and the upper ends of which engage shoulders onthe keystems 117 to` restore the stems to, and sustain them in, normalraised'position. Check lugs 117 (Figs. 1 and 3) project froxn the sidesof the keystems above the angular bars 1,18 to limit the depression ofthe keys, by contact with the bars 118, and similar check lugs (notshown) located o n the stems 117 beneath the angular bars 118, arrestthe stems when they reach their normal positions under the influence ofthe springs 180.

As the rows or denominations of keys are alike, pointed out inconnection with the row of keys designating the months, an explanationof one. row will suffice for all.

he lower ends of the stems 117 are pivotally connected to the forwardends of levers 116 (Figs. 1, 2 and 4) fulerumed intermediate their endson brackets 111 depending from the cross bars 101, and the rear ends ofthe levers are articulated with the lower ends of stops or index pins115 arranged in denominational rows corresponding to the rows of keys 117, the upper ends of which stops protudein file through guide aperturesextending from front to rear in the top ofa housing 113, supported onrearward extensions 'of the side frames 110.

The keystems. preferably, are allof the same length, but the levers 11Gare successively longer from top to bottom (Fig. 1) and the' stops orindex pins 115 are successively longer from front to back.

Obviously', depression of the rearmost key 117 against the tensionof'its spring 180, projects the foremost stop 115 above'the remainingstops in the saine row or file, and to maintain the stop projected, theedge of each stop or index pin carries an ear 115a (Fig. 3) adapted tocoact with a locking device in the form of a latch .114 common to eachdenominational row of stops, and extending across the housing 113 fromfront to rear.. Pintles 114 projecting from the lower corners of thelatch, are journaled in the front and rear sides of the housing, and aspring 181 connected to a trip lug 11.4b ex# tending :from the upperrearcorner of the latch, holds the free edgeof the latch 114 against theadjacent edges of the stops 115 at a pointv above the ears 115" thereof.

`The ear 115, as the stop is projected upwardly, wipes past anddisplaces the associated latch 114 against the tension of its spring181, whichrestores the latchto normal position, after the ear, in itsascent, es capes the latch, and upon removal of the pressure on thekeystem 117, the restoring spring 180 returns the key and stop until theear 115n contacts the upper edge of vthe latch, which prevents furtherreturn and holds the stop in effective position.

In case a key has been erroneously deexcept as hereinafter specifically.311, 311", respectively. The v 117 to normal.

This is what is known in-the art as a lexi ble keyboard. If'the key lastactuated'is gently depressed until the .apex otv its ear 115a contactsthe" free edge of the latch 114 without passing above the latch, thekeygvill restore to normal whenl pressure thereonis removed, under ltheinfluence off the 'spring 180. Otherwise, the latch ,will-swim neath theear to hold the'second-namefstop projected. i

The individual stops 115 ofealchdenemi.

national row variously arrest "the excursions of correspondingpositioning bars and racks 310, 310d (Fig. 4) pivotally mounted at 361fand 350 on the upper ends o f front supporting arms 312 and rearsupporting arms ront support- Ying arms are journaled on a cross shaft300 and the rear supporting arms are journaled on a cross rod 301.`Drive springs 383 -connected to the rear supporting arms 311, 311, and`to a restraining and restoring bar 205, tend to advance the forwardlyprojecting ends of the racks and positioning bars toward the stops '115.The'restraining and restoring bar 205 issupported in fingers 266m,

lon a rotatable cross bar 266, and normally liesv in the path of thefront yarms 312 to hold the racks and tired position.

The main drive shaft 200011 its forward stroke, rooksva-n arm 210 whosefree end traverses a cam slot in a crank 220 vconnected to the cross bar266,l to withdraw the ref. straining and restoring bar 205l and ,freethe arms 312 and 311, 311dl to the action of the springs 383, whichadvance the racks 31.0

and positioning bars 310d until they are arrested by projected stops'115or by rack de tentssimilar to the detent22lm shown, in

- been proj ected those denominations wherein no stops have Thedenominational rack detents which overlie the upper endsof the ystops ineach row, are journaled onA a cross'shaft 2.02, and arekdis )laced orshifted out of the paths ot' jectionl of stops in nomlnational `vrows.

fro

311,3111. Links 515, 523' connect the conT headsv pf which Jare mountedthe types 561."

positioning bars yin, re-v 1 .foonvergmgieyers liiexed'farwardly v therespective .rear Supporting fal'mSl lwardly during the advance oi? theracks and positioning bar 3101, the converging levers 311a rise and liftthe typebars 514 524d to locate the types 561 corresponding to the keysdepressed, at the printing line on the platen 2094, and as the maindriveshaft 200 approaches the limit of its forward stroke, printing hammers(not shown) impress the types on the paperpfcarried by the platen. n

l Denominational numeral wheels 490 indi vidually rotatable on an axle400, each carry a rvpinion 435 arranged above the respective racks 310.Suitable mechanism (notl shown) normally supports the numeral l, wheelsand' their -pinions above the racks 310', in which position, they areheldduring the advance of the racks and v1positioning bar. 4Themaindrive shaft, as it reaches its forward limit of rotation, tripsthe numeral wheel supporting mechanism to eifect the en'gagement of thenumeral wheel pinions lwith their racks..

y The main drive shaft, on its'return stroke, presses the restrainingand restoring bar 205 against the advanced forward supporting 1grins 312to retire the racks and positioning The racks, during such retirement,t'urn the numeral ywheels 490 to register thereon an amountcorresponding to the values of the depressed keys and projected stops,and as the main drive shaft nears the end of its return stroke,subsequently to the complete retirement of the racks, it operates thecounter-supporting mechanism, to disconnect the numeral wheel pinionsfrom the racks.

The racks 310 andpositioning bar 3101, during their retirement, restorethe typecarriers 514, 524y to their normal lowered positions. For a morecomplete explanation of .the foregoing, reference may be made to U. S.patents lto iVales, 797,032, above mentioned, and to Wilgus, 1,133,596,March 30, 1915. i p

4The latches 114 which hold the key-'set stops 115 ineffective positionare released ordinarily by the main drive shaft200 during itsreturnstroke, to enable.4 the springs 180 to restore the keys 1 17 andstops to idle position lpreparatory to setting up another item, in thefollowing manner.

The trip lugs 114b on the latches extend outwardly through apertures113a -(Fig. 3)

in the rear wall of the housing 113, into the mi @Page521 (Fem, '2andeiiiireferr.

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eqi,ppedwith anti-friction rolls 239, projecting radially from asuitably ,iputnled u nivlersallatchreleaSing` rbail 201 lying adjacentall .theiatrplugs 114", ,Y y :.75 An arm 224 (Figs. k,1 and 4) fastenedto'- 12o .pathsoj ,denominationally arranged releasf the releasingbail'201, is pivotallyconnected l' at 2 64tooneend of an actuator comprisingay thrust .link 223.the opposite end of whichl link has .an enlargedaperture 223a fitting over and resting upon a stud 260c mounted on theside frame (not shown) ofthe machine. Preferably, the link or actuatoris guided at its lower end by a grooved roll 243 journaled on the stud260, and a spring 284 connected to the arm 224, tends to hold the latteradvanced, and the releasing tappets 239 below the trip lugs 114", asshown in Figs. 1 and 4.

A shoulder 2,23" on the link or actuator 223 lies inthe path of'atripping stud 255 mounted on a crank 212 fast on the main drive shaft200.

The trippingr stud 255, during the forward stroke of the main driveshaft, wipes idly beneath the shoulder 223b of the releasing link oractuator 223, lifting and then dropping'the lower end of the latter, theaperture 223a being made large enough to accommodate this idle shifting.rlhe main drive shaft, on its return stroke, rocks the crank 212rearwardly to cause the trip stud 225 to strike the shoulder 223" andthrust the link or actuator 223 rearwardly against the tensionof. spring284, which thrust is transmitted as a. rocking movement through the arm224, to the universal bail 201, to turn the bail and contact the tappets252, 239, with the projecting trip lugs 114" of the latches `114.The'tappets swing the latches 114 away from the ears 115a on the stops115, whereupon the restoring springs 180 retract the stops to idleposition, and restore the depressed keys 117.

The tripping stud 255, during the continuation of the `ret-urn stroke,escapes past the shoulder 223", whereupon, the spring 284 restores theactuator 223 and latch'- releasing mechanism 201, 239 tol normal idleposition.

A spring 581, inferior in strength to spring 284, holds the thrust linkor actua'- tor 223 down to insure that the shoulder 223 shall lie in thepath of the tripping stud 255.

The foregoing construction is old and only constitutes a part of thepresent invent'on in so far as it is combined with the novel featureshereinafter set forth. l

lt will readily be seen that by removing certain of the denominationalreleasing tappets 252, 239, any stops 115 set in correspondingdenominations will not be restored. at each operation of the main driveshaft, but will remain in position to arrest the corresponding racks orpositioning bars 310, 310", with the result that the data replwhen it isdesired not to repeat the data controlled thereby, I have lprovided asecond latch-releasing means independent of the universal bail 201andits releasing tappets, and operable directly from the driving link oractuator 223, which actuates the releasing bail 201.

lVhile the invention is susceptible of use in several ways, I havechosen to illustrate its operation in connection with the well knownstatement keyboard comprising denominational rows of numeral keys 11Textending toward the left of the keyboard. The last row of keys at theleft of the machine (Figs. 1, 2 and 3) are similar to the regularnumeral keys 117, except that the key tops bear abbreviations of themonths from January to September. The series of stops 115 controlledthereby, are similar to the denominational rows of stops controlled bythe regular numeral keys and serve to variously varrest a. positioningbar 310d similar to the familiar racks 310,-except for the omission ofthe rack teeth, such bar being connected with a typeearrier 524d similarto the regular typecarrier except that it mounts the twelve typesforabbreviations of the months. As there are but nine keys to adenominational row, the three uppermost keys in the seconddenominational bank from the left are equipped with key tops bearingabbreviations of the months from l'lctober to December.

ln view of the fact that a single typecarrier 524l carries the twelvemonth designation types, the upper ends of the stops 115" (Fig. 3)controlled by the month keys in the second row from the left do notprotrude through the housing 113 in alinement with their controllingkeys, but extend laterally and then upwardly so that their extreme upperends protrude through the top of the housing 113 at points adjacent thestops 115 in the left hand bank, to arrest the positioning bar 310connected with the month typecarrier 524". Thel positioning bar carriesa laterally extending lip 31()c (Fig. 2) to contact the threeofl'setmonth stops 115". The stops 115" have legs 115c (Figs. 2 and 3)interspaced between the stops 115 of the left hand row, and equippedwith ears 115a with which the left hand latch 114 coacts. Thus, a singlelatch locks any of the month stops 115, 115 in effective position, andall the month stops `coact with a single rack detent 221m (Fig. 4)

and define the excursions of a common positioning bar 3101.

The numeral keys 1, 2 and 3 (not shown) in the second row from the left,are used to set up the tens digits of the days of the month, and thenumeral keys" 117 in the lthird row from the left, set up the stops 115controlling the printing of the units digits of the days of the: month.y

lVith this form of keyboard, the well known split in the printer section(shown in U. S. patent-to vWilgus, 1,260,615, March 26, 1918) may beformed at will between the third row of keys from the left and theremaining rows to the right thereof.

Also, as the registration of months on the counters 490 is of no value,the numeral Wheel corresponding with the left hand denomination of keys(nowappropriated to th printing of month designations) is omitteOrnission of the releasing tappeis`252, 239 to coact with the latches114 for the three left hand denominations, as shown in Fig. 2, permitsthe repeated printing of f any date set up on the three left handdenominations, with successive amounts set up on the banks ordenominations' to the'right of theV split, without requiring theoperator to setk up the anewA prior to every operation of the main driveshaft, thereby relieving the operator of this extra and unnecessarywork,

and enabling him to confine his attention toi the correct setting up ofthe amounts;

Obviously, when it is desired lto use the keyboard to capacity, thesplit is eliminated and the numeral keys in the second and third banksfrom the left may be'employed to set up stops corresponding to thedigits to be registered in those denominations. Such use would renderadvisable the automatic` quired.

Therefore, I provide an auxiliary latch; releasing device comprisingalever 129' having a hub 133 (Figs. 2 and 3) journaled on a sleeve 130a(Figs. 1 and 4l) projecting outwardly from the left hand side frame 110.The rear' arm of the lever 129b projects past the rear wall of thehousing 113 and is of set, as at 129, which offset normally lies beneaththe projecting trip lugs 114b of the three left hand latches 114 and isprovided with protuberances 129d in line with the trip lugs. A spring187 connected to a depending arm 129 of the lever, normally holds thereleasing offset 129c in idle position, and the forward arm ofthe levercarries a lip 129t adapted to contact one of the standards 110L of theside frame 110, to arrest the lever in idle osition against the tensionof the spring 18 `An adjustable finger 129 pivoted intermediate its endsat 460, to the depending arm 129e of the lever 1291, carries a laterallextending foot 129g at its forward en which normally confronts a drivestud 354" and at the same time, force the pin 354b against the foot 129gof the finger 129 to rock the releasing lever 129 and contact theprotuberances 129d with thetrip lugs 114"` ofthe three left handdenominational latches 114 yto swing the latter and thereby release theset stops 115, 115b for restoration .by the springs 180.

Whenever it is desiredto repeat the data set up by depression of keys117 in the three left hand banks, a disabling key 129, slotted toembrace the `sleeve 13()al is depressed and locked by engaging theknotch 129i (Fig. 4) thereof with the keyboardplate 112. Depression ofthis disabling key 129a forces a cam 129k thereon against the stop 129hof the adjustable finger 129, to swing the finger on its pivot 460 anddisplace the foot 129g from the path of the stud or projectionv 354" onthe actuator 223 to thus render idle the auxiliary latch-releasingjlever129".

Under this'adjustment, the date set up by the depression of keys 117 inIthe 'three left hand bankscan be repeated as often as desired, andwhile the latches 114 which hold the stops 115 to the right of the threeleft hand banks, are released by the bail 201 and the tappets 252, 239,at each operation of the main drive shaft 200, the latches coacting withthe stops 115, 115b controlled by the three left hand banks of keys 117remain effective to hold the stops in set position until the nextoperation of the main drive shaft after the disabling key 129Il isreleased.

Another advantage pertaining to the use of this mechanism, with flexibleke board, is that the stops 115, 1151 controlllng the date' printing canbe released from the latches 114 by the depression of otherdatedesignating keys in the three left hand banks,

notch 129 from the keyboard plate 112. A set collar 134 on the end ofthe sleeve 130a prevents the disengagement of the disabling key 13 0Land the lever 129b therefrom, the set collar, and a spacing Washer 135between the lever and key, operating to guide the latter as it isdepressed and restored.

Vhile I-have explained my invention as applied to the three left handbanks of keys only, it is obvious that it may be variously arranged tocontrol a larger or smaller number ofbanks as`desired, and I do not Wishto limit myself to the exact construction shown.

Changes may be made in the form and arrangement of the several parts setforth, Without departing from the spirit and scope of my invention,

Vhat I claim as new isl. The combination With an indexing mechanism,including several denominational files of stops; means to set the stopstoefi'ective position; and means to releasably retain the set stops ineffective position; of separate and Wholly independent stop-releasingmembers; a single actuator common to the several stop-releasing members,and directly connected with one of the stop-releasing members; ashiftable finger connected to another of the stop-releasing-members andnormally lying in the path of the actuator to enable the latter todirectly drive the last named stop-releasing member, independently ofthe first named-fstop-releasing member; and means to shift the fingerout of the path of the actuator.

2. The combination with an indexing mechanism, including severaldenominational files of stops; means to set the stops to effectiveposition; and means to releasably retain the set stops in effectiveposition; ofseparate and Wholly independent stop-releasing members; asingle actuator common to the lseveral stop-releasing members, anddirectly connected with one of the stop-releasing members; a projectionmounted on the actuator to directly drive another of the stop-releasingmembers; a finger shiftably mounted on the last named stop-releasingmember, and normally lying in the path of the projection; and means todisplace the finger relatively to the projection, to render inoperativethe last-named stop-releasing member.

3. The combination, in a calculating machine, with an indexingmechanism, including a` plurality of denominationally-arranged files ofstops; means to set the stops to effective position; and latches toreleasably hold the set stops in effective position; of alatch-releasing mechanism, including a rocking member lying adjacent thelatches; tappets mounted on the rocking member to contact and disablecertain only of the latches; an auxiliary latch-releasing leversupported independently of the rocking member, and lying adjacentcertain other latches; means to actuate the rocking member; and a fingerconnected With the auxiliary latch-releasing lever, and adjustableintoand out of the path of the means which actuates the rocking member.

ARTHUR PENTECOST.

